macbwt Posted September 27, 2022 Report Share Posted September 27, 2022 You can reach me at this group. https://mewe.com/join/mactfordedge 2 Quote Link to comment Share on other sites More sharing options...
ZeroPlus Posted September 27, 2022 Report Share Posted September 27, 2022 2 hours ago, macbwt said: You can reach me at this group. https://mewe.com/join/mactfordedge Very interesting photo! Obviously this varnish would also be found on other engine components. The choice is obvious - synthetic. Maybe that is why conventional oils always had a suggested change interval of 3000 miles. Quote Link to comment Share on other sites More sharing options...
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